AZ494B/D voltage mode pulse width modulation switching regulator contr
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Product Brief PULSE-WIDTH-MODULATION CONTROL CIRCUITS Description
AZ494B/D voltage mode pulse width modulation switching regulator control circuit designed primarily power supply control. AZ494B/D consists reference voltage circuit, error amplifiers, on-chip adjustable oscillator, dead-time control (DTC) comparator, pulse-steering control flip-flop, output control circuit. precision voltage reference (VREF) improved 1.5% through trimming this provides better output voltage regulation. AZ494B/D provides push-pull single-ended output operation, which selected through output control.
AZ494B/D
AZ494B Reference Voltage AZ494D Reference Voltage Tolerance Frequency Change with Temperature (Max) Open Loop Voltage Gain (db) Unity-Gain Bandwidth (KHz) Output Saturation Voltage (Common Emitter) Rise Time (ns) 1.5% DIP-16 Package SOIC-16 4.95
Features
Stable 4.95V/5V Reference Voltage Trimmed ±1.5% Accuracy Uncommitted Output 200mA Sink Source Current Single-End Push-Pull Operation Selected Output Control Internal Circuitry Prohibits Double Pulse Either Output Complete Control Circuit with Variable Duty Cycle On-Chip Oscillator With Master Slave Operation
Fall Time (ns) Supply Voltage
Benefits
Very competitive price
Applications
SMPS Back Light Inverter Charger
Additional Available Materials
Samples Data Sheet Reliability Report Report Application Notes Demo Board
Jun. 2005
Semiconductor Manufacturing Limited
Product Brief PULSE-WIDTH-MODULATION CONTROL CIRCUITS Configuration
SOIC-16 DIP-16
FEEDBACK OUTPUT CTRL
AZ494B/D
Ordering Information
Package Temperature Range Part Number Lead AZ494BM SOIC-16 85oC AZ494BMTR AZ494DM AZ494DMTR AZ494BP AZ494DP Lead Free AZ494BM-E1 AZ494BMTR-E1 AZ494DM-E1 AZ494DMTR-E1 AZ494BP-E1 AZ494DP-E1 Lead AZ494BM AZ494BM AZ494DM AZ494DM AZ494BP AZ494DP Marking Lead Free AZ494BM-E1 AZ494BM-E1 AZ494DM-E1 AZ494DM-E1 AZ494BP-E1 AZ494DP-E1 Packing Type Tube Tape Reel Tube Tape Reel Tube Tube
DIP-16
Detailed information please refer relevant datasheet.
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Jun. 2005
Semiconductor Manufacturing Limited
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